

EK Chain
EK MXR3D Series 520 Drive Chain - 120 Links
EK MXR3D Series 520 Drive Chain - 120 Links
1860 Obispo Avenue
1860 Obispo Avenue
C
Signal Hill CA 90755
United States
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EK's MXR3D is their top-of-the-line motocross and supercross chain, and it shows in every link. The 3D Series is elegant, strong, detailed, and magnificent — engineered to deliver the ultimate in shape, flexibility, and strength.
EK set out to produce a premium chain that was as beautiful as it is strong. An impressive outer plate shape with a curved form reduces weight and increases visual appeal, connected together with inner plates and pins that feature lightening holes to further reduce mass.
Key Features
- Lightening holes allow for a lighter chain without compromising strength, while also removing mud and dispersing heat more efficiently.
- Chromium Carbide pin surface coating increases hardness and reduces chain wear.
- Edge-cut inner plate reduces friction and enables smooth engagement with the sprocket, while also helping the chain shed mud and dissipate heat effectively.
- Dimpled outer plate with chrome plating for a precision finish and reduced friction.
- Non-sealed design to reduce as much friction as possible — optimized for closed-course motocross use.
- End-facing inner plates for wear-resistant performance against mud without reducing strength.
Specifications
| Spec | Detail |
|---|---|
| Chain Size | 520 |
| Tensile Strength | 8,650 lbs. |
| Max Engine Capacity | 500cc |
| Application | Motocross / Supercross use only |
| Master Link | Clip style — included with chain |
| Available Link Counts | 116, 118, 120 links |
| Available Colors | Chrome, Gold, Black/Gold, Black/Black |


